“The Time of the Doctor” is out on Blu-ray and DVD on Tuesday, bringing Matt Smith’s farewell performance in the “Doctor Who” Christmas special to home video.

Hero Complex readers get a peek at a clip from the bonus features, which provides a behind-the-scenes glimpse of the Wooden Cyberman — a more organic variation of the classic “Doctor Who” metal-man — and the stuntwoman who debuted the alien in the special. In the clip, lead writer and executive producer Steven Moffat also talks about the plethora of aliens, including Daleks, Weeping Angels and the Silence, that battle the Doctor in the special.

“We’ve had a lot of returning monsters in this one,” Moffat says in the video (watch it below). “I want it to be a grand-standing battle for the Eleventh Doctor’s final moments. It doesn’t take just one monster to end a Doctor’s era, it takes loads of them.”

The Blu-ray and DVD releases include a “Behind the Lens” featurette about the special; “Tales from the TARDIS,” a retrospective about the show’s 50-year history featuring interviews with Smith and previous Doctors David Tennant, Sylvester McCoy, Colin Baker, Peter Davison and Tom Baker as well as several actors who’ve portrayed companions; and “Farewell to Matt Smith,” an hourlong documentary narrated by Alex Kingston (River Song) about Smith’s influence on the series, featuring interviews with the show’s cast, crew and other commenters, including myself.